105ft twinax cable

[kishy]

Approximately 105 feet - was not easy to measure. Best to assume an error margin of +/- 5ft, just to be sure. Was used with an AS/400.

Pic:

Make me an offer.

Unpackaged weight is 3kg; shipping weight will be higher.

Please let me know if you're interested...I do not plan to leave it sitting around forever, and I will investigate my options for getting rid of it in a couple weeks.

 

[kishy]

Bump - I do still have this. Kinda forgot about it.

 

[Chuck(G)]

Heck, I can't even give away RG58 coax (got lots left over from an old 10Base2 setup). Good luck!

 

[kishy]

Heh, thanks...I would suspect twinax is not nearly as easy to find not-installed-in-buildings-already as any sort of coax...

I dunno. Hopefully someone who needs it will find this; I really just want it to go to someone who can use it. I know we have at least a few people who play with twinax terminals.

 

[kishy]

Bumpity. For some reason I still have this.

 

[Compgeke]

Well, I've got a great idea for you as to what to do with it, weave a rug using it.

 

[kishy]

Despite being sure I'd dumped this as planned months and months ago, I've found it here...again.

One final bump before I get rid of it (and make sure it actually makes it into the car).

 

[g4ugm]

Sadly its really only usefull on AS/400 and System/36 and 38. (not sure about older stuff such as system/3) so I think your best bet is to weight it in for scrap. I think these days even if I had an AS/400 I would use RJ45 adaptors...

 

[Le_Bear]

Heck, I can't even give away RG58 coax (got lots left over from an old 10Base2 setup). Good luck!

I read over on scrap forum that most coax is only copper coated, one guy said the only true copper he knew of was some old viacom cable. I guess all you could do is cut it to see what's inside, and best to strip it too. I know you didn't mention scrapping, but it seems like kishy may be getting ever closer to it here, and thought I'd comment before he wound up being told it wasn't worth anything as scrap, when it probably is good copper

 

[g4ugm]

It depends on the intended use for the cable. Much modern cable intended for VHF, UHF and above has a a foil (aluminium I think) sheath with a copper coated center conducter. However older cables and those for lower frequencies such as this twinax usually/should/need to have solid copper cores. The reason you can get away with copper coating it high frequencies is something called the "skin effect". At high frequencies the signal tends to flow only allong the surface of the condoctor. On the other hand TwinAx has a max frequency of a couple of Mhz and must work over long distances (up to 5000ft) so I would expect it to have a solid copper core. The only spec I can find, which also has an IBM part number so it sounds good was here:-

http://www.deltec.com.mx/files/helukabel/redes_datos/cable_lan/r061_lan_cable.pdf

So I would expect the caqble to have a high copper content and so a high scrap value. Of course in the UK scrap dealers have high moral values anmd so its very unlikley they would try and talk you down. Thats why there is so little cable theft in the uk, they always check the source of anything you bring to sell...

http://www.bbc.co.uk/news/uk-england-somerset-16980074

http://www.newsletter.co.uk/news/local/bt-counts-cost-of-stolen-cables-1-3620803

http://www.bbc.co.uk/news/uk-england-oxfordshire-14788584

http://www.btp.police.uk/passengers/issues/cable_theft.aspx

Dave

 

[Le_Bear]

Thanks Dave. Sometimes here, too often I believe, the workers there are just day laborers, who can certainly cause you a mix-up if you're not real careful. I don't really go there now often enough to know for sure, but when I lived in a larger city, near the bigger yards, that's kind of what I surmised.